<!DOCTYPE html>
<html>
<head>
    <title>Bilibili 专栏 Markdown 工具 - 前端窗口</title>
    <meta charset="utf-8">
    <link rel="stylesheet"
     href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">
<style>
    body {
        padding-top: 20px;
        padding-bottom: 20px;
    }
</style>
</head>
<body>
<div class="container">
  <div class="panel panel-success">
    <div class="panel-heading">
        <h3 class="panel-title">提交反馈</h3>
    </div>
    <div class="panel-body">
        <strong>成功（Success）</strong>
    </div>
  </div>
</div>
  <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js">
  </script>
  <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js">
  </script>
</body>
</html>
